The Vertebral Column Flashcards
A series of bones which are held together to give support to the spinal cord and arising nerves
vertebral column
how many total vertebrae
33
how many movable vertebrae
24
how many cervical vertibrae
7
how many thoracic vertebrae
12
how many lumbar vertebrae
5
how many vertebrae are fused in the sacrum
5
how many vertebrae are fused in the coccyx
4
how are vertebrae numbered
top to bottom
what are intervertebral disks
fibrocartilagenous discs between the vertebrae
what is the function of intervertebral disks
weight bearing
how are IVDs named
named for the 2 vertebrae it sits between
where on the vertebral column is there no IVD
between C1 and C2
what is the annulus fibrosis
a fibrous outer layer to IVDs
what is the nucleus pulposus
the inner substance of IVDs
what is the innervation of IVDs
aneural except the peripheral third
what is the blood supply of IVDs
avascular
spinal curve that curves anteriorly
lordosis
spinal curve that curves posteriorly
kyphosis
which spinal curves are lordotic
cervical and lumbar
which spinal curves are kyphotic
thoracic and sacral
large, heavy, anterior part of the vertebra
body
what happens to vertebral bodies as they progress inferiorly
they get larger
part of the vertable that encloses the vertebral foramen
vertebral arch